WIRING - May 30, 2022 How To Build Holley EFI main power harness Check out this "How To" video showing how to build a Holley EFI main Power harness! Share Share on Facebook Tweet on Twitter Pin on Pinterest Leave a comment Name Email Message Please note, comments must be approved before they are published Back to DEPLOYMENT GUIDE Tags COIL MOUNTS CONNECTOR BULKHEAD TURBO MOUNT TUTORIAL WIRING